Updated the version of actions/checkout. #89

	---
	name: latest
	on:
	pull_request:
	push:
	branches:
	- master
	# schedule:
	# - cron: '50 3 * * 6'

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Check out git repository.
	uses: actions/checkout@v4

	- name: Build the docker container
	run: docker build -t docker-test .

	- name: Test the docker container runs.
	run: docker run --name docker-container -d --privileged -v /sys/fs/cgroup:/sys/fs/cgroup:rw --cgroupns=host docker-test

	- name: Check ansible is availble inside the container.
	run: docker exec --tty docker-container env TERM=xterm ansible --version

	# If on master branch, push to Docker Hub.
	push:
	runs-on: ubuntu-latest
	needs: build
	if: github.ref == 'refs/heads/master'

	# For further details on the below see;
	# https://github.com/docker/build-push-action#multi-platform-image &
	# https://docs.github.com/en/free-pro-team@latest/actions/reference/context-and-expression-syntax-for-github-actions#contexts
	steps:
	- name: Check out git repository.
	uses: actions/checkout@v4

	- name: Setup QEMU.
	uses: docker/setup-qemu-action@v1

	- name: Setup buildx.
	uses: docker/setup-buildx-action@v1

	- name: Login to Docker Hub.
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME}}
	password: ${{ secrets.DOCKER_HUB_PASSWORD}}

	- name: Build and push.
	uses: docker/build-push-action@v2
	with:
	context: ./
	file: Dockerfile
	platforms: linux/amd64,linux/arm64
	push: true
	tags: ${{ github.repository }}:latest

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